| Adoption Council of Ontario, Markham - Mailing Address | Markham |
| Beginnings Family Services | Hamilton |
| Catholic Children's Aid Society of Hamilton, Adoption and Fostering Services | Hamilton |
| Child and Youth Permanency Council of Canada | Ottawa |
| Children's Bridge (The), Nepean - Greenbank Rd | Ottawa |
| Children's Resource and Consultation Centre of Ontario | Toronto |
| Halton Children's Aid Society, Burlington Office | Burlington |
| Halton Children's Aid Society, Milton Office | Milton |
| Ontario. Ministry of Children, Community and Social Services, Post Adoption Disclosure Unit | Toronto |
| Ontario. Ministry of Children, Community and Social Services, Private and International Adoption | Toronto |
| Parent Finders Ottawa, Online/Web Service | Ottawa |
